For the construction of stoves and kitchen cabinets with skillful work, you can use approx 50% ordinary brick. It is best to use a brick of manual production and not burnt. The manual "stove" brick is yellow to dark red in color. Yellow bricks are not suitable for the construction of furnaces, for they do not stick together with mortar. A brick of manual production on fire does not break, warms up evenly and is a good heat conductor. At work, it is easy to cut in every direction, process and cut any parts from it.

Machine brick is hard, it is difficult to cut cleanly, it often cracks along the grain or layers, which usually has several. It is compact, smooth and not as good a heat conductor as a hand-made brick. Due to its disadvantages, machine bricks, also known as "tapes", can be used for the construction of furnaces only for foundations, or under-floor air ducts.

Fireclay brick, that is, refractory, is used for the construction of furnace parts exposed to high temperatures. The fireclay brick used in the construction of the furnace should be porous and in terms ,fire resistance correspond to Seger taper no 24-26. Usually, however, a fire-resistant brick is supplied to stove-fireplaces corresponding to Seger cone no 32-34, not only that it unnecessarily increases the cost of the construction of furnaces, but it creates worse conditions for the operation of the furnace. Manufacturing is making progress in this area, instead of expensive chamotte products, bricks and prefabricated panels made of clay-concrete, which in terms of fire resistance are not inferior to chamotte products, and in operation and processing they are much better and much cheaper than them. These products are known under various trade names, e.g.. "Fireproof".

The currently used thickness of the ordinary and fireclay bricks is 65 Mm. These bricks are too thick for the construction of stoves and kitchen shafts. Therefore, "Ogniotrwal" produces bricks with a thickness 60 Mm, the thickness of the plates is from 1,5-5 Cm.